Table 4. Demulsification Efficiency of the Prepared AIPy-IL and IPy-IL for Crude oil/Seawater Emulsion at Different Times at Temperature 45 °C.

		crude oil/seawater emulsions (vol. %)
		90:10		70:30		50:50
compound	dosage (ppm)	η %	time (h)	η %	time (h)	η %	time (h)
IPy-IL	100	100	6	80	10	32	10
	250	100	4	73	7	40	12
	500	100	5	73	8	28	10
AIPy-IL	100	100	4	100	6	32	10
	250	100	2	86.5	6	32	10
	500	100	4	86.5	8	36	10